Preview: UFC Fight Night ‘Mir vs. Duffee’ Heavyweights Frank Mir and Todd Duffee square off, as the Ultimate Fighting Championship returns to San Diego.

By the Numbers: TUF 21 Finale Stephen Thompson is developing into an intriguing welterweight contender.

Preview: UFC 189 ‘Mendes vs. McGregor’ Short-notice replacement Chad Mendes meets Conor McGregor for the interim featherweight title on Saturday in Las Vegas.

Sherdog’s Top 10: Defunct Promotions Plenty of influential MMA organizations have come and gone, leaving their marks on a sport that left them behind.

Wednesday MMA: A TV Viewer’s Guide Wednesday 4:00 a.m. ET MavTV: King of the Cage Coming Home Part 2 6:00 a.m. ET Fox Sports 2: UFC Fight Night UFC: Bisping...

TWO TITLE FIGHTS HEADLINE UFC 187 AS JONES MEETS JOHNSON AND WEIDMAN COLLIDES WITH BELFORT (PRESS RELEASE) -- Las Vegas – On Memorial Day Weekend, two world title fights headline UFC® 187 as undisputed light heavyweight king Jon Jones meets No. 1 contender Anthony Johnson in the five-round main event. Plus, middleweight champion...

Sherdog’s Top 10: Most Aggressive Fighters Willingness to do violence to one’s opponent while taking his or her best shot is at the heart of some of MMA’s most beloved figures.

Under the Microscope: Analyzing Welterweight Greats Several fighters can lay claim to the G.O.A.T. mantle at 170 pounds, from Georges St. Pierre and Matt Hughes to Nick Diaz and Jake Shields.

UFC Fight Night ‘Machida vs. Dollaway’ Notebook: Height of Ambition C.B. Dollaway seeks the most significant victory of his career, as he tackles Lyoto Machida on Saturday in Sao Paulo, Brazil.

This Month’s MMA Birthdays: Fedor Emelianenko Turns 38 Fedor “The Last Emperor” Emelianenko turns 38 on Sept. 28. | Photo: Dave Mandel/Sherdog.com More than two years after his...